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Alik [6]
3 years ago
7

Describe what stability means in an atom and where it can be determined.

Chemistry
1 answer:
Lemur [1.5K]3 years ago
7 0

Answer:

Explanation:For an atom to be stable the outmost shell most be filled with electron i.e it most obey the octet rule which state that for an atom to be stable it most be fully filled with electron in there outermost shell.

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Calcium Carbide (CaC2) is an unusual substance that contains a carbon anion (C2 2- ). The reaction with water involves several s
rjkz [21]

The question is incomplete. The complete question is:

Calcium Carbide (CaC₂) is an unusual substance that contains a carbon anion (C₂²⁻). The reaction with water involves several steps that occur in rapid succession. CaC2 is a salt (notice that its name is similar to sodium chloride). When a salt dissolves in water, ions leave the crystal lattice and enter the aqueous (aq) solution. Write the relevant balanced chemical equation for the dissolution of CaC₂, in water.

Answer:

CaC₂(s) + 2H₂O(l) → Ca(OH)₂(aq) + C₂H₂(aq)

Explanation:

When a salt dissolves in water, it dissociates in its ions. In the Calcium Carbide, the cation is Ca⁺² and the anion is C₂²⁻, so the reaction is:

CaC₂(s) + 2H₂O(l) → Ca(OH)₂(aq) + C₂H₂(aq)

The base Ca(OH)₂ is soluble, so it will dissociate at Ca⁺ and OH⁻, but the C₂H₂ is stable and doesn't dissociate in the solution.

5 0
3 years ago
Jill graphs the speed of a model train that is travelling at a speed of 15 kilometers per hour. Which graph shows the speed of t
Tasya [4]

Answer:c

Explanation:

8 0
3 years ago
What are two ways carbon returns from animal into the water
soldi70 [24.7K]
Split and merge into it. While they are alive, carbon returns from animals into water through waste products from respiration and defecation/urination. Another way when they are dead is from decaying remains. While they are alive, carbon returns from animals into water through waste products from respiration and defecation/urination.

Good enough?
8 0
3 years ago
Eter explores the periodic table and how atoms can combine to form compounds. He uses beads with different sizes and colors as m
Eduardwww [97]

Answer is B-  He can arrange the beads into various formations using different colors and sizes multiple times

Explanation: I hope the helped!

7 0
3 years ago
Read 2 more answers
Is a covalent bond the same as an atomic compound? Please explain why and if not, please explain the difference.
dezoksy [38]
In an ionic bond, one atom essentially donate an electron to stabilize the other atom. A molecule bond is made when two or more atoms form a chemical bond, linking them together. The two types of bonds are ionic bonds and covalent bonds.
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3 years ago
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